I think a lot of this is the influence of international basketball on American basketball. We had gotten stuck in sort of a rut. Oh, that guy's 6'11" what is he doing shooting threes, get him under the basket where he belongs. Then the Europeans started producing 6'11" + guys who could not only shoot, but handle the ball, pass the ball, and defend multiple positions. We have always had a few exceptions to our rules of positions, but now it is wide open. If you can play, you can play! Along with the freedom of movement rules I think this had made for a much better game. Just my opinion.